Tiffany lamp
A Tiffany lamp is a type of lamp with a glass shade designed by Louis Comfort Tiffany and collaborators, including Clara Driscoll, made in his design studio in Corona, Queens, New York City. The Tiffany glass in the lampshades is put together with the copper-foil technique instead of lead came, the classic technique for stained glass windows. Tiffany lamps were part of the Art Nouveau movement, specifically Art Nouveau glass. Tiffany Studios produced considerable numbers of designs between 1893 and the 1920s, when the company went out of business.
Tiffany lamps were a fashionable piece of decorative art in the 1890s and early 1900s but fell out of style by the 1930s. By the 1960s, they were in demand again, but since there were a limited number of the original lamps, many companies started producing replicas and new styles influenced by Tiffany. The original lamps are valued by collectors and sell for between thousands and millions of dollars.
Due to Tiffany's dominant influence on the style, people use the terms Tiffany lamp and Tiffany-style lamp for stained-glass, leaded lamps in general, even those not made by Tiffany Studios.